New Multi-Threaded Pi Program - Faster than SuperPi and PiFast

[Boogerlad]

AFAIK, Prime95 only tests the fpu, ram, and memory controller under "blend". This cannot guarantee stability though, because the integer units are untouched. Thus hotter != more stressful? It would still be necessary to run the BKT test right?

[poke349]

AFAIK, Prime95 only tests the fpu, ram, and memory controller under "blend". This cannot guarantee stability though, because the integer units are untouched. Thus hotter != more stressful? It would still be necessary to run the BKT test right?

• BKT is pure integer work. No memory, almost entirely L1 cache.
• HNT is a mix of everything from integer, floating-point, cache, memory...

I can't say how well each test stresses the integer units. (there's nothing to compare against)
But if you want to stress the integer units, then run both tests overnight.

The old stress-tester in v0.5.5 and earlier has a bit of everything (BKT, FFT, HNT). But the HNT component is dominant. (Note that VST is new to v0.6.1.)


Going back to floating-point, if anyone here is a programmer and has experience compiling code, you might want to check out my answer to this Stack Overflow question. It has a fairly strong heat generator that you might want to play with.

I can't say whether it'd make a good floating-point stress-test since it doesn't check to see if the calculation is correct. I wrote it a year ago to measure heat, not to stress-test.